Headlight



Aug. 3 1926. 1,594,748 G. L. NEAVE HEADLIGHT Filed Nov. 21, 1925Patented Aug. 3, 1926.

UNITED STATES PATENT OFFICE.

GEORGE LESLIE NEAVE, OF EAST FREMANTLE, WESTERN AUSTRALIA, AUSTRALIA.

HEADLIGHT.

Application filed November 21, 1925.. Serial No. 70,612.

This invention relatesto improvements in headlights.

It is obviously desirable to provide headlights with efficientreflectors, so as to give visibility for a considerable distance. Although the foregoing object is readily attained, it is unfortunatelyassociated with a glare that is confusing to pedestrians and to vehiclespassing in the opposite direction. It is therefore desirable to dim. theheadlights under the foregoing circumstances, for which purpose manydevices have been proposed.

The present invention consists broadly of forming thereflector of aplurality of straight or curved sectors that are capable of beingsimultaneously turned out of the reflecting position, and so willtemporarily cease to function.

The invention will, however, be more readily understood by reference tothe accompanying drawings showing a preferred embodiment thereof.

In the drawings, Fig. 1 is a sectional plan of a headlight, and Fig, 2is a rear elevation of the reflector dissociated from the casing.

The headlight casing 10 is adapted. to receive a reflector, a lightingsocket 11, a glass or lens 12 and a holding ring 13., The reflector iscomposed of a plurality of sectors 14, the edges of which abut orpreferably slightly overlap (8 sectors are shown in Fig. 2). tached to aspindle 15 working in one or more bearings 16. The bearings 16 aresupported on a ring 17 that is connected by a plurality of spiders 18 toa smaller ring 19 in juxtaposition to the lighting socket 11. Aplurality of springs 20 are adapted to resiliently engage all or anumber of the reflector sectors so as to tend to keep them in the normalclosed position. The ends of the spindles 15 are connected by universaljoints so that on one spindle being turned, a corresponding movementwill be given to the other The base of each sector is atspindles. Onespindle has a lug or extension 21 attached thereto and to such lug canbe attached a Bowden wire 22.

The reflector operates as follows.

As shown in the drawings, it serves to reflect light in the normal way.When, however, it is desired to dim the light, the Bowden wire attachedto the lug 18 is operated. This results in the spindles 15 beingsimultaneously turned, so that the reflector sec- 5 ,tors are turned soas to become parallel to the axis of projection. In consequence, thelight functions without a reflector, as the exposed back of casing 10 ispurposely made dull. lVhen the necessity for a dimmed light has beenremoved, the Bowden wire is released, which results in the springs 20pushing the reflector sectors back into their normal reflectingposition.

It will be apparent that the various details of construction are capableof considerable modification without necessarily departing from thescope of the invention as defined in the appended claim. Obviously, thereflector may be parabolic in shape, or otherwise curved to suitparticular circumstances. Furthermore, only portion of the reflector maybe formed of movable sectors.

I claim A headlight including a reflector comprising a plurality ofsectors each provided at its base with a spindle, bearings in which saidspindles are mounted for pivotal movement of the sectors and universaljoints connecting said spindles end to end for simultaneous movement ofall of the sectors and means for moving said sectors, said meanscomprising springs active to hold the sectors in normal position and aBowden wire connected to one of the spindles to 8 move the sectorsagainst the tension of the said springs.

Dated this 6th day of October, 1925.

GEORGE LESLIE NEAVE.

